Indicator light tower



FIG. 1 is a perspective view of an indicator light tower showing my newdesign;

FIG. 2 is a front view thereof.

FIG. 3 is a side view thereof.

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The broken line showing of additional segments of the design is includedfor the purpose of illustrating portions of the “article” and forms nopart of the claimed design.

CLAIM The ornamental design for an indicator light tower, as shown anddescribed.